this uses treatment cells, 10 times per day. the rapid recycling brings an oxygen and high levels, allowing bacteria to get a lot of oxygen into the area without having to force it into the water. first of all, i will show this slide. the water goes into a tank to filter solids, and then it goes into a recirculating tank, and that takes it through the cells and are in the planted area in the project but it then goes to a third take -- tank, two final polishing cells. this is on a micro level. and if we can switch over it, to the document camera, one of the biggest challenges we had was having and of planting area in the urban location, so this is really taking a lot of cooperation, which really do not have yet. it is taking a lot of cooperation to have more planting areas than is to collect -- than is typical. this is about 150 square feet for every 1,000 gallons that you treat, so we are treating 5,000 gallons, and that is 750 square feet of planted area, so you can see that the bacteria clings to the gravel and roots of the pl